Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method for mullite whisker reinforced ceramic material
The invention discloses a preparation method for in-situ growth of a mullite whisker reinforced ceramic material. The preparation method comprises the following steps: 1) mixing 20-45% by mass of bauxite powder, 40-68% by mass of kaolin powder, 0-30% by mass of coal ash, 0-13% by mass of potassium feldspar powder, 0-3% by mass of magnesium oxide powder, 0-4% by mass of barium oxide powder and 0-6% by mass of calcium oxide powder to obtain a raw material; 2) putting the raw material in a ball mill to be ball-milled till the grain size is less than 20 [mu]m so as to obtain a mixed powder material; 3) adding 5-10% by mass of water into the mixed powder material, uniformly stirring the mixed powder material, aging the mixed powder material for 1-2 hours, and preparing the mixed powder material into a blank material by virtue of a pressure applying method; and 4) heating the blank material and reducing the temperature to obtain the mullite whisker reinforced ceramic material. The preparation method disclosed by the invention can be used for remedying the defects in an existing reinforced ceramic material process, and the technical process can be further simplified and the preparation cost is lowered while the performance is improved.
Preparation method for mullite whisker reinforced ceramic material
The invention discloses a preparation method for in-situ growth of a mullite whisker reinforced ceramic material. The preparation method comprises the following steps: 1) mixing 20-45% by mass of bauxite powder, 40-68% by mass of kaolin powder, 0-30% by mass of coal ash, 0-13% by mass of potassium feldspar powder, 0-3% by mass of magnesium oxide powder, 0-4% by mass of barium oxide powder and 0-6% by mass of calcium oxide powder to obtain a raw material; 2) putting the raw material in a ball mill to be ball-milled till the grain size is less than 20 [mu]m so as to obtain a mixed powder material; 3) adding 5-10% by mass of water into the mixed powder material, uniformly stirring the mixed powder material, aging the mixed powder material for 1-2 hours, and preparing the mixed powder material into a blank material by virtue of a pressure applying method; and 4) heating the blank material and reducing the temperature to obtain the mullite whisker reinforced ceramic material. The preparation method disclosed by the invention can be used for remedying the defects in an existing reinforced ceramic material process, and the technical process can be further simplified and the preparation cost is lowered while the performance is improved.
Preparation method for mullite whisker reinforced ceramic material
WU YUN (Autor:in) / SHI FEIFEI (Autor:in) / YANG GUANGWU (Autor:in) / LI CHUNXI (Autor:in) / WU PEIDONG (Autor:in) / WEN YANKUN (Autor:in) / DING DONG (Autor:in) / XIA XIAOLU (Autor:in) / LIU HUI (Autor:in)
09.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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